Method: Fog::Compute::AWS::Real#request_spot_instances

Defined in:
lib/fog/aws/requests/compute/request_spot_instances.rb

#request_spot_instances(image_id, instance_type, spot_price, options = {}) ⇒ Object

Launch specified instances

Parameters

  • ‘image_id’<~String> - Id of machine image to load on instances

  • ‘instance_type’<~String> - Type of instance

  • ‘spot_price’<~Float> - maximum hourly price for instances launched

  • options<~Hash>:

    • ‘AvailabilityZoneGroup’<~String> - specify whether or not to launch all instances in the same availability group

    • ‘InstanceCount’<~Integer> - maximum number of instances to launch

    • ‘LaunchGroup’<~String> - whether or not to launch/shutdown instances as a group

    • ‘LaunchSpecification.BlockDeviceMapping’<~Array>: array of hashes

      • ‘DeviceName’<~String> - where the volume will be exposed to instance

      • ‘VirtualName’<~String> - volume virtual device name

      • ‘Ebs.SnapshotId’<~String> - id of snapshot to boot volume from

      • ‘Ebs.NoDevice’<~String> - specifies that no device should be mapped

      • ‘Ebs.VolumeSize’<~String> - size of volume in GiBs required unless snapshot is specified

      • ‘Ebs.DeleteOnTermination’<~String> - specifies whether or not to delete the volume on instance termination

    • ‘LaunchSpecification.KeyName’<~String> - Name of a keypair to add to booting instances

    • ‘LaunchSpecification.Monitoring.Enabled’<~Boolean> - Enables monitoring, defaults to disabled

    • ‘LaunchSpecification.SubnetId’<~String> - VPC subnet ID in which to launch the instance

    • ‘LaunchSpecification.Placement.AvailabilityZone’<~String> - Placement constraint for instances

    • ‘LaunchSpecification.SecurityGroup’<~Array> or <~String> - Name of security group(s) for instances, not supported in VPC

    • ‘LaunchSpecification.SecurityGroupId’<~Array> or <~String> - Id of security group(s) for instances, use this or LaunchSpecification.SecurityGroup

    • ‘LaunchSpecification.UserData’<~String> - Additional data to provide to booting instances

    • ‘Type’<~String> - spot instance request type in [‘one-time’, ‘persistent’]

    • ‘ValidFrom’<~Time> - start date for request

    • ‘ValidUntil’<~Time> - end date for request

Returns

  • response<~Excon::Response>:

    • body<~Hash>:

      • ‘requestId’<~String> - Id of request

      • ‘spotInstanceRequestSet’<~Array>:

        • ‘createTime’<~Time> - time of instance request creation

        • ‘instanceId’<~String> - instance id if one has been launched to fulfill request

        • ‘launchedAvailabilityZone’<~String> - availability zone of instance if one has been launched to fulfill request

        • ‘launchSpecification’<~Hash>:

          • ‘blockDeviceMapping’<~Hash> - list of block device mappings for instance

          • ‘groupSet’<~String> - security group(s) for instance

          • ‘keyName’<~String> - keypair name for instance

          • ‘imageId’<~String> - AMI for instance

          • ‘instanceType’<~String> - type for instance

          • ‘monitoring’<~Boolean> - monitoring status for instance

          • ‘subnetId’<~String> - VPC subnet ID for instance

        • ‘productDescription’<~String> - general description of AMI

        • ‘spotInstanceRequestId’<~String> - id of spot instance request

        • ‘spotPrice’<~Float> - maximum price for instances to be launched

        • ‘state’<~String> - spot instance request state

        • ‘type’<~String> - spot instance request type

Amazon API Reference

[View source]

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# File 'lib/fog/aws/requests/compute/request_spot_instances.rb', line 59

def request_spot_instances(image_id, instance_type, spot_price, options = {})
  if block_device_mapping = options.delete('LaunchSpecification.BlockDeviceMapping')
    block_device_mapping.each_with_index do |mapping, index|
      for key, value in mapping
        options.merge!({ format("LaunchSpecification.BlockDeviceMapping.%d.#{key}", index) => value })
      end
    end
  end
  if security_groups = options.delete('LaunchSpecification.SecurityGroup')
    options.merge!(Fog::AWS.indexed_param('LaunchSpecification.SecurityGroup', [*security_groups]))
  end
  if security_group_ids = options.delete('LaunchSpecification.SecurityGroupId')
    options.merge!(Fog::AWS.indexed_param('LaunchSpecification.SecurityGroupId', [*security_group_ids]))
  end
  if options['LaunchSpecification.UserData']
    options['LaunchSpecification.UserData'] = Base64.encode64(options['LaunchSpecification.UserData'])
  end

  request({
    'Action'                            => 'RequestSpotInstances',
    'LaunchSpecification.ImageId'       => image_id,
    'LaunchSpecification.InstanceType'  => instance_type,
    'SpotPrice'                         => spot_price,
    :parser                             => Fog::Parsers::Compute::AWS::SpotInstanceRequests.new
  }.merge!(options))
end